package com.dwk.config;

import org.springframework.amqp.core.*;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

/**
 * ttl队列 配置文件类代码
 */

@Configuration
public class TtlQueueConfig {
    //普通交换机
    public static final String X_EXCHANGE = "X";

    //死信交换机
    public static final String Y_DEAD_LETTER_EXCHANGE = "Y";

    //普通队列
    public static final String QUEUE_A = "QA";
    public static final String QUEUE_B = "QB";
    public static final String QUEUE_C = "QC";

    //死信队列
    public static final String DEAD_LETTER_QUEUE = "QD";

    //声明普通交换机
    @Bean("xExchange")
    public DirectExchange xExchange() {
        return new DirectExchange(X_EXCHANGE);
    }

    //声明死信交换机
    @Bean("yExchange")
    public DirectExchange yExchange() {
        return new DirectExchange(Y_DEAD_LETTER_EXCHANGE);
    }

    //声明普通队列C
    @Bean("queueC")
    public Queue queueC(){
        Map<String, Object> arguments = new HashMap<>();
        arguments.put("x-dead-letter-exchange", Y_DEAD_LETTER_EXCHANGE);
        arguments.put("x-dead-letter-routing-key", "YD");
        return QueueBuilder
                .durable(QUEUE_C)
                .withArguments(arguments)
                .build();
    }

    //声明普通队列A,TTL为10秒
    @Bean("queueA")
    public Queue queueA() {
        Map<String, Object> arguments = new HashMap<>();
        arguments.put("x-dead-letter-exchange", Y_DEAD_LETTER_EXCHANGE);
        arguments.put("x-dead-letter-routing-key", "YD");
        arguments.put("x-message-ttl", 10000);
        return QueueBuilder
                .durable(QUEUE_A)
                .withArguments(arguments)
                .build();
    }

    //声明普通队列B,TTL为40秒
    @Bean("queueB")
    public Queue queueB() {
        Map<String, Object> arguments = new HashMap<>();
        arguments.put("x-dead-letter-exchange", Y_DEAD_LETTER_EXCHANGE);
        arguments.put("x-dead-letter-routing-key", "YD");
        arguments.put("x-message-ttl", 40000);
        return QueueBuilder
                .durable(QUEUE_B)
                .withArguments(arguments)
                .build();
    }

    //声明死信队列
    @Bean("queueD")
    public Queue queueD() {
        return QueueBuilder
                .durable(DEAD_LETTER_QUEUE)
                .build();
    }

    //QA绑定X交换机
    @Bean
    public Binding queueaBindingX(@Qualifier("queueA") Queue queueA,
                                  @Qualifier("xExchange") DirectExchange xExchange){
        return BindingBuilder.bind(queueA).to(xExchange).with("XA");
    }

    //QB绑定X交换机
    @Bean
    public Binding queuebBindingX(@Qualifier("queueB") Queue queueB,
                                  @Qualifier("xExchange") DirectExchange xExchange){
        return BindingBuilder.bind(queueB).to(xExchange).with("XB");
    }

    //QD绑定Y交换机
    @Bean
    public Binding deadLetterBindingQAD(@Qualifier("queueD") Queue queueD,
                                        @Qualifier("yExchange") DirectExchange yExchange){
        return BindingBuilder.bind(queueD).to(yExchange).with("YD");
    }

    //QC绑定X交换机
    @Bean
    public Binding queuebCindingX(@Qualifier("queueC") Queue queueC,
                                  @Qualifier("xExchange") DirectExchange xExchange){
        return BindingBuilder.bind(queueC).to(xExchange).with("XC");
    }

}
